题目内容
5. What do you mean, there are only ten tickets? There _______ be twelve.
5. should/ought to
6. I ___________________ (好奇)know when we will go out for a picnic.
16. If we had taken effective measures much earlier, the river so seriously now.
A. is not polluted
B. would not be polluted
C. had not been polluted
D. would not have been polluted
5. Lucy is very sad now. You _______ have told her the news, (mustn't/oughtn't to)
用适当的情态动词填空
1. Mary__________ have left school, for her bike is still here.
9. ―Sorry, Mum. I got a G in the exam.
—You have done better, but you didn't try your best.
A. would B. must
C. could D. shall
5. 别不穿外套出去,好吗?
Don't go out without a coat,______________ ?
19. All visitors are waiting outside. Dr Li, they come in together or separately?
A. shall B. can C. will D. would
5. 为了找到一个更好的工作,他决定再学习一门外语。
In order to find a better job, he decided to study __________ foreign language. (a/an+序数词)